This Light-Up Santa Hat will help you to stand out from all of the other Santas delivering presents. The five little red snowflakes flash across the white trim light up to bring an updated look to this classic Santa hat. Use this light up Christmas hat anytime you want to spread some Christmas spirit in the dark. It measures about 17" inches tall and about 21" inches in circumference around the inside base (the part that fits your head). Requires 2 AA batteries (not included).